feat: Steve was shot by Skeleton
This commit is contained in:
Damien Guillotin
parent
678874bd75
commit
3d4fe8d58c
268
TP_maillage.asv
Normal file
268
TP_maillage.asv
Normal file
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@ -0,0 +1,268 @@
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clear;
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close all;
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load(i)
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nb_images = 36; % Nombre d'images
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% chargement des images
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for i = 1:nb_images
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if i <= 10
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nom = sprintf('images/viff.00%d.ppm', i - 1);
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else
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nom = sprintf('images/viff.0%d.ppm', i - 1);
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end
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% L'ensemble des images de taille : nb_lignes x nb_colonnes x nb_canaux
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% x nb_images
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im(:, :, :, i) = imread(nom);
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end
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% chargement des points 2D suivis
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% pts de taille nb_points x (2 x nb_images)
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% sur chaque ligne de pts
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% tous les appariements possibles pour un point 3D donne
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% on affiche les coordonnees (xi,yi) de Pi dans les colonnes 2i-1 et 2i
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% tout le reste vaut -1
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pts = load('viff.xy');
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% Chargement des matrices de projection
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% Chaque P{i} contient la matrice de projection associee a l'image i
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% RAPPEL : P{i} est de taille 3 x 4
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load dino_Ps;
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% chargement des masques (pour l'elimination des fonds bleus)
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% de taille nb_lignes x nb_colonnes x nb_images
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% A COMPLETER quand vous aurez termine la premiere partie permettant de
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% binariser les images
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% ...
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% Affichage des images
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% A COMPLETER %
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% Calculs des superpixels %
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% Conseil : afficher les germes + les régions %
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% à chaque étape / à chaque itération %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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K = 100;
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m = 0.1;
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n = 3;
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seuil_E = 10;
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q_max = 20;
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figure;
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% subplot(2, 2, 1);
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imshow(im(:, :, :, 1)); title('Image 1');
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figure;
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imshow(im(:, :, :, 1)); title('Image 1');
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hold on;
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[germes, image_labelise, E] = super_pixel(im(:, :, :, 1), K, m, n, seuil_E, q_max);
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% subplot(2, 2, 2); imshow(im(:, :, :, 9)); title('Image 9');
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% hold on;
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% germes = super_pixel(im(:, :, :, 9), K, m, n, q_max);
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%
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% subplot(2, 2, 3); imshow(im(:, :, :, 17)); title('Image 17');
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% hold on;
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% germes = super_pixel(im(:, :, :, 17), K, m, n, q_max);
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%
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% subplot(2, 2, 4); imshow(im(:, :, :, 25)); title('Image 25');
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% hold on;
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% germes = super_pixel(im(:, :, :, 25), K, m, n, q_max);
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% A COMPLETER %
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% Binarisation de l'image à partir des superpixels %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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figure;
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R = germes(:, 3);
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B = germes(:, 5);
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scatter(R, B);
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hold on
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a = (0.7 - 0.1) / (0.6 - 0.2);
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b = 0.1 - a * 0.2;
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plot([0 1], [b a + b]);
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W = a * R + b - B > 0;
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germes = [germes W];
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bw_img = reshape(germes(image_labelise, 6), size(im, 1), []);
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%%
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figure;
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bw_img = imread("mask.mat")
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imshow(bw_img);
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% A FAIRE SI VOUS UTILISEZ LES MASQUES BINAIRES FOURNIS %
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% Chargement des masques binaires %
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% de taille nb_lignes x nb_colonnes x nb_images %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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pixel_b = find(bw_img == 1);
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[r, c] = ind2sub(size(bw_img), pixel_b(1));
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contour = bwtraceboundary(bw_img, [r c], 'W', 8);
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hold on
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% plot(contour(:,2), contour(:,1),'g','LineWidth',5);
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% r = delaunay(contour);
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% barycentres = (contour(r(:,1),:) + contour(r(:,2),:) + contour(r(:,3),:)) / 3;
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% scatter(barycentres(:,2), barycentres(:,1));
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% % triplot(r, contour(:,2), contour(:,1));
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[vx, vy] = voronoi(contour(:,1), contour(:,2));
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% plot(vx, vy);
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ok = vx(1,:) > 0 & vx(1,:) < size(bw_img, 1) & ...
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vx(2,:) > 0 & vx(2,:) < size(bw_img, 1) & ...
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vy(1,:) > 0 & vy(1,:) < size(bw_img, 2) & ...
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vy(2,:) > 0 & vy(2,:) < size(bw_img, 2);
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vx = floor(vx(:,ok));
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vy = floor(vy(:,ok));
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% plot(vx, vy, 'b');
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ind1 = sub2ind(size(bw_img), vx(1,:), vy(1,:));
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ok1 = bw_img(ind1) > 0;
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ind2 = sub2ind(size(bw_img), vx(2,:), vy(2,:));
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ok2 = bw_img(ind2) > 0;
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ok = ok1 & ok2;
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vx = vx(:,ok);
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vy = vy(:,ok);
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plot(vy, vx, 'r');
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%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% A DECOMMENTER ET COMPLETER %
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% quand vous aurez les images segmentées %
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% Affichage des masques associes %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% Affichage des masques associes
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% figure;
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% subplot(2,2,1); ... ; title('Masque image 1');
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% subplot(2,2,2); ... ; title('Masque image 9');
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% subplot(2,2,3); ... ; title('Masque image 17');
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% subplot(2,2,4); ... ; title('Masque image 25');
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% Reconstruction des points 3D
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X = []; % Contient les coordonnees des points en 3D
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color = []; % Contient la couleur associee
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% Pour chaque coupple de points apparies
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for i = 1:size(pts, 1)
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% Recuperation des ensembles de points apparies
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l = find(pts(i, 1:2:end) ~= -1);
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% Verification qu'il existe bien des points apparies dans cette image
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if size(l, 2) > 1 & max(l) - min(l) > 1 & max(l) - min(l) < 36
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A = [];
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R = 0;
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G = 0;
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B = 0;
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% Pour chaque point recupere, calcul des coordonnees en 3D
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for j = l
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A = [A; P{j}(1, :) - pts(i, (j - 1) * 2 + 1) * P{j}(3, :);
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P{j}(2, :) - pts(i, (j - 1) * 2 + 2) * P{j}(3, :)];
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R = R + double(im(int16(pts(i, (j - 1) * 2 + 1)), int16(pts(i, (j - 1) * 2 + 2)), 1, j));
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G = G + double(im(int16(pts(i, (j - 1) * 2 + 1)), int16(pts(i, (j - 1) * 2 + 2)), 2, j));
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B = B + double(im(int16(pts(i, (j - 1) * 2 + 1)), int16(pts(i, (j - 1) * 2 + 2)), 3, j));
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end;
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[U, S, V] = svd(A);
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X = [X V(:, end) / V(end, end)];
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color = [color [R / size(l, 2); G / size(l, 2); B / size(l, 2)]];
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end;
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end;
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fprintf('Calcul des points 3D termine : %d points trouves. \n', size(X, 2));
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%affichage du nuage de points 3D
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% figure;
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% hold on;
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%
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% for i = 1:size(X, 2)
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% plot3(X(1, i), X(2, i), X(3, i), '.', 'col', color(:, i) / 255);
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% end;
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%
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% axis equal;
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% A COMPLETER
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% Tetraedrisation de Delaunay
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% T = ...
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% A DECOMMENTER POUR AFFICHER LE MAILLAGE
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% fprintf('Tetraedrisation terminee : %d tetraedres trouves. \n',size(T,1));
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% Affichage de la tetraedrisation de Delaunay
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% figure;
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% tetramesh(T);
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% A DECOMMENTER ET A COMPLETER
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% Calcul des barycentres de chacun des tetraedres
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% poids = ...
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% nb_barycentres = ...
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% for i = 1:size(T,1)
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% Calcul des barycentres differents en fonction des poids differents
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% En commencant par le barycentre avec poids uniformes
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% C_g(:,i,1)=[ ...
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% A DECOMMENTER POUR VERIFICATION
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% A RE-COMMENTER UNE FOIS LA VERIFICATION FAITE
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% Visualisation pour vérifier le bon calcul des barycentres
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% for i = 1:nb_images
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% for k = 1:nb_barycentres
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% o = P{i}*C_g(:,:,k);
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% o = o./repmat(o(3,:),3,1);
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% imshow(im_mask(:,:,i));
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% hold on;
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% plot(o(2,:),o(1,:),'rx');
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% pause;
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% close;
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% end
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%end
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% A DECOMMENTER ET A COMPLETER
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% Copie de la triangulation pour pouvoir supprimer des tetraedres
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% tri=T.Triangulation;
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% Retrait des tetraedres dont au moins un des barycentres
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% ne se trouvent pas dans au moins un des masques des images de travail
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% Pour chaque barycentre
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% for k=1:nb_barycentres
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% ...
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% A DECOMMENTER POUR AFFICHER LE MAILLAGE RESULTAT
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% Affichage des tetraedres restants
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% fprintf('Retrait des tetraedres exterieurs a la forme 3D termine : %d tetraedres restants. \n',size(Tbis,1));
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% figure;
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% trisurf(tri,X(1,:),X(2,:),X(3,:));
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% Sauvegarde des donnees
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% save donnees;
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% CONSEIL : A METTRE DANS UN AUTRE SCRIPT %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% load donnees;
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% Calcul des faces du maillage à garder
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% FACES = ...;
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% ...
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% fprintf('Calcul du maillage final termine : %d faces. \n',size(FACES,1));
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% Affichage du maillage final
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% figure;
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% hold on
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% for i = 1:size(FACES,1)
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% plot3([X(1,FACES(i,1)) X(1,FACES(i,2))],[X(2,FACES(i,1)) X(2,FACES(i,2))],[X(3,FACES(i,1)) X(3,FACES(i,2))],'r');
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% plot3([X(1,FACES(i,1)) X(1,FACES(i,3))],[X(2,FACES(i,1)) X(2,FACES(i,3))],[X(3,FACES(i,1)) X(3,FACES(i,3))],'r');
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% plot3([X(1,FACES(i,3)) X(1,FACES(i,2))],[X(2,FACES(i,3)) X(2,FACES(i,2))],[X(3,FACES(i,3)) X(3,FACES(i,2))],'r');
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% end;
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@ -1,5 +1,6 @@
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clear;
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close all;
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load("mask.mat");
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nb_images = 36; % Nombre d'images
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% chargement des images
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@ -41,7 +42,7 @@ load dino_Ps;
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% Conseil : afficher les germes + les régions %
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% à chaque étape / à chaque itération %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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K = 50;
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K = 100;
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m = 0.1;
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n = 3;
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seuil_E = 10;
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@ -49,12 +50,12 @@ q_max = 20;
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figure;
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% subplot(2, 2, 1);
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imshow(im(:, :, :, 9)); title('Image 1');
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imshow(im(:, :, :, 1)); title('Image 1');
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figure;
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imshow(im(:, :, :, 9)); title('Image 1');
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imshow(im(:, :, :, 1)); title('Image 1');
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hold on;
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[germes, image_labelise, E] = super_pixel(im(:, :, :, 9), K, m, n, seuil_E, q_max);
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[germes, image_labelise, E] = super_pixel(im(:, :, :, 1), K, m, n, seuil_E, q_max);
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% subplot(2, 2, 2); imshow(im(:, :, :, 9)); title('Image 9');
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% hold on;
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@ -74,23 +75,73 @@ hold on;
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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figure;
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R = germes(:,3);
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B = germes(:,5);
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R = germes(:, 3);
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B = germes(:, 5);
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scatter(R, B);
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hold on
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W = germes(:,3) > 0.5;
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a = (0.7 - 0.1) / (0.6 - 0.2);
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b = 0.1 - a * 0.2;
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plot([0 1], [b a + b]);
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W = a * R + b - B > 0;
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germes = [germes W];
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figure;
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imagesc(reshape(germes(image_labelise, 6), size(im,1), []));
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%%
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bw_img = reshape(germes(image_labelise, 6), size(im, 1), []);
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figure;
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% bw_img = im_mask(:,:,1) == 0;
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imshow(bw_img);
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% A FAIRE SI VOUS UTILISEZ LES MASQUES BINAIRES FOURNIS %
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% Chargement des masques binaires %
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% de taille nb_lignes x nb_colonnes x nb_images %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% ...
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pixel_b = find(bw_img == 1);
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[r, c] = ind2sub(size(bw_img), pixel_b(1));
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contour = bwtraceboundary(bw_img, [r c], 'W', 8);
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hold on
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% plot(contour(:,2), contour(:,1),'g','LineWidth',5);
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% r = delaunay(contour);
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% barycentres = (contour(r(:,1),:) + contour(r(:,2),:) + contour(r(:,3),:)) / 3;
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% scatter(barycentres(:,2), barycentres(:,1));
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% % triplot(r, contour(:,2), contour(:,1));
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[vx, vy] = voronoi(contour(:,1), contour(:,2));
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% plot(vx, vy);
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ok = vx(1,:) > 0 & vx(1,:) < size(bw_img, 1) & ...
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vx(2,:) > 0 & vx(2,:) < size(bw_img, 1) & ...
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vy(1,:) > 0 & vy(1,:) < size(bw_img, 2) & ...
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vy(2,:) > 0 & vy(2,:) < size(bw_img, 2);
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vx = floor(vx(:,ok));
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vy = floor(vy(:,ok));
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% plot(vx, vy, 'b');
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ind1 = sub2ind(size(bw_img), vx(1,:), vy(1,:));
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ok1 = bw_img(ind1) > 0;
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ind2 = sub2ind(size(bw_img), vx(2,:), vy(2,:));
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ok2 = bw_img(ind2) > 0;
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ok = ok1 & ok2;
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vx = vx(:,ok);
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vy = vy(:,ok);
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plot(vy, vx, 'r');
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%%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% A DECOMMENTER ET COMPLETER %
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@ -59,7 +59,7 @@ function [germes, img_labelise, E] = super_pixel(img, K, m, n, seuil_E, q_max)
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img_labelise = zeros(width, height);
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% mélange mélange mélange
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germes = germes(randperm(length(germes)),:);
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germes = germes(randperm(length(germes)), :);
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% boucle princiaple
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for q = 1:q_max
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@ -141,7 +141,7 @@ function [germes, img_labelise, E] = super_pixel(img, K, m, n, seuil_E, q_max)
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end
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% affichage des germes
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scatter(germes(:, 2), germes(:, 1), 'b.');
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scatter(germes(:, 2), germes(:, 1), 'w.');
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drawnow nocallbacks
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% calcul de l'erreur résiduel
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